Accessing this data constitutes agreement to the MHAS Terms and Conditions and a commitment to properly credit the MHAS. View terms and conditions at: https://www.mhasweb.org/DataProducts/Home.aspx
Important notice on the use of LLM and other AI tools : Large language models (LLMs) and other artificial intelligence (AI) tools may not be used to manage, process, or analyze data distributed by the Mexican Health and Aging Study (MHAS), including public-use files, imputed files, constructed variables, ancillary study data (e.g., Mex-Cog), Gateway Harmonized MHAS files, and any restricted or sensitive data products. Providing MHAS microdata to an LLM or any other AI tools constitutes redistribution of the data and is therefore a violation of all existing MHAS data-use terms and agreements. For more details, please consult the full policy here.

Imputed Data






Imputations of Weight & Height

The MHAS Imputation of the self-report of weight and height, and the constructed Body Mass Index (BMI) variables, are available by wave of the study. For more information about the Imputation of these measures please refer to the descriptive document.

Imputation of Cognitive Function Variables

The MHAS Imputation of the cognitive function measures, was completed for both for those who completed a direct interview and a proxy interview. To impute the cognition measures we adopted the method of sequence of regressions with a SAS based Imputation and Variance Estimation software (IVEware), developed by Survey Research Center, Institute for Social Research at the University of Michigan. For more information about the Imputation of these measures please refer to the descriptive document.

Imputations of Economic Variables

The MHAS Imputation of Economic Variables data files are available in separate data files, by section of the questionnaires and are divided in Household Level and Individual Level files. For more information about the Imputation of the MHAS Economic Variables please refer to the respective wave document:
MHAS 2021 descriptive document
MHAS 2018 descriptive document
MHAS 2015 descriptive document
MHAS 2012 descriptive document
MHAS 2003 descriptive document
MHAS 2001 descriptive document